Low-power liquid crystal driving technique based on capacitors for 1-pixel displays

Hiroyuki Manabe, Munekazu Date, Hideaki Takada, Hiroshi Inamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Liquid crystal displays (LCDs) are suitable as elements for wearable and ubiquitous computing, thanks to their low power consumption. A technique that drives LCDs with lower power is proposed. It harvests charges on the LCD and stores them in an additional capacitor for reuse when the polarity changes. A simulation shows that the technique reduces the charge requirements by up to 50%. An experiment on a prototype shows that the mduction is only partially offset by the overhead of micro-controller operation. Overall, a 30% reduction was achieved with large 1-pixel LCDs. With a small 10x10mm LCD, the overhead matched the reduction and no improvement was measured.

Original languageEnglish
Title of host publication21st International Display Workshops 2014, IDW 2014
PublisherSociety for Information Display
Pages1343-1346
Number of pages4
ISBN (Electronic)9781510827790
Publication statusPublished - 2014 Jan 1
Externally publishedYes
Event21st International Display Workshops 2014, IDW 2014 - Niigata, Japan
Duration: 2014 Dec 32014 Dec 5

Publication series

Name21st International Display Workshops 2014, IDW 2014
Volume2

Conference

Conference21st International Display Workshops 2014, IDW 2014
CountryJapan
CityNiigata
Period14/12/314/12/5

    Fingerprint

Keywords

  • 1-pixel display
  • Capacitor
  • Liquid crystal display

ASJC Scopus subject areas

  • Hardware and Architecture
  • Human-Computer Interaction
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Manabe, H., Date, M., Takada, H., & Inamura, H. (2014). Low-power liquid crystal driving technique based on capacitors for 1-pixel displays. In 21st International Display Workshops 2014, IDW 2014 (pp. 1343-1346). (21st International Display Workshops 2014, IDW 2014; Vol. 2). Society for Information Display.